| Acronym | Definition |
|---|
| SFIO➣Striped File Input Output |
| SFIO➣Specjalistyczny Fundusz Inwestycyjny Otwarty (Polish: Specialized Investment Open Fund) |
| SFIO➣Serious Fraud Investigation Office (India) |
| SFIO➣Section Française de l'Internationale Ouvrière (French Socialist Party) |
| SFIO➣Student Funding and International Office (Oxford University; UK) |